Frankly I am a bit despairing at the degree to which this "it's not so bad, let's just keep adding costs" thinking pervades the ongoing trajectory of the thing. I said so recently and publicly and it got a rebuke from the language team that IMO missed the point entirely. So: sad.
Unbounded lookahead doesn’t prevent quality independent implementations. It’s literally a few lines of code in any practical implementation we’re talking about.
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again, not all implementations are hand-written recursive descent, nor can they be
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You can use GLR too. And you can even probably use lexer hacks to make it work with yacc.
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